build(deps): bump dart from 3.0.7 to 3.1.0 in /tests/end2end_tests/image

Bumps dart from 3.0.7 to 3.1.0.

---
updated-dependencies:
- dependency-name: dart
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

tests/end2end_tests/image/Dockerfile

@@ -25,7 +25,7 @@ RUN set -eux ; \
 
 # BRANCH
 # BUILD BRANCH
-FROM dart:3.0.7@sha256:4dc0299dd863edbf81e0e43490fa9c610f6655b62a2e1bc0e0dc02dfea2105eb AS build-branch
+FROM dart:3.1.0@sha256:96d2e5d03b8356c2a7542716ace7dce745971efe1d03888a1d7ecd2e7c1dde36 AS build-branch
 
 ENV URL=https://github.com/atsign-foundation/sshnoports.git
 ENV REPO_DIR=/app/repo
@@ -61,7 +61,7 @@ ENTRYPOINT sudo service ssh start && sh ${HOMEDIR}/entrypoint.sh
 
 # LOCAL
 # BUILD LOCAL
-FROM dart:3.0.7@sha256:4dc0299dd863edbf81e0e43490fa9c610f6655b62a2e1bc0e0dc02dfea2105eb AS build-local
+FROM dart:3.1.0@sha256:96d2e5d03b8356c2a7542716ace7dce745971efe1d03888a1d7ecd2e7c1dde36 AS build-local
 
 ENV REPO_DIR=/app/repo
 ENV OUTPUT_DIR=/app/output